Monthly climate guide
Banja Luka weather in December
Expect cold weather in Banja Luka in December: afternoons reach about 7°C (44°F), while nights drop to around -1°C (30°F). Around 62 mm of rain falls over the month (some rain), and skies are often cloudy. Daytime highs are 6°C cooler than November and about the same as January.
What stands out in December
- Mornings start cold: the average low is -1°C, and frost is common.
- Banja Luka is usually about 2°C warmer than Sarajevo, 140 km away, in December.
- December is among Banja Luka's three coolest months.
- December brings early winter to Banja Luka.
Avg high
7°C
44°F
Avg low
-1°C
30°F
Rainfall
62 mm
some rain
Humidity
90%
relative
Sky
70%
cloud · often cloudy
Banja Luka weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 5°C / 41°F | -3°C / 27°F | 54 mm | 90% | 77% |
| February | 7°C / 44°F | -2°C / 29°F | 66 mm | 87% | 76% |
| March | 12°C / 54°F | 1°C / 34°F | 58 mm | 79% | 67% |
| April | 18°C / 64°F | 6°C / 42°F | 56 mm | 73% | 65% |
| May | 21°C / 70°F | 10°C / 50°F | 107 mm | 74% | 67% |
| June | 26°C / 79°F | 15°C / 58°F | 75 mm | 69% | 56% |
| July | 30°C / 85°F | 17°C / 62°F | 68 mm | 59% | 44% |
| August | 31°C / 87°F | 17°C / 63°F | 51 mm | 55% | 39% |
| September | 25°C / 76°F | 13°C / 55°F | 78 mm | 65% | 56% |
| October | 19°C / 66°F | 7°C / 45°F | 79 mm | 75% | 61% |
| November | 12°C / 54°F | 3°C / 38°F | 61 mm | 86% | 73% |
| December | 7°C / 44°F | -1°C / 30°F | 62 mm | 90% | 70% |
What to pack for December
- A proper insulated winter coat
- A hat, scarf and gloves
- Thermal base layers and warm, grippy boots for icy mornings
- A small travel umbrella, just in case
Is December a good time to visit Banja Luka?
Compare the months in the chart above to find your ideal window.
Best time to visit Banja Luka →Other Bosnia and Herzegovina cities in December
Cite or embed this data
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Banja Luka weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/bosnia-and-herzegovina/banja-luka/december
<a href="https://weathercompare.eu/weather/bosnia-and-herzegovina/banja-luka/december">Banja Luka weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/bosnia-and-herzegovina/banja-luka" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Banja Luka weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/bosnia-and-herzegovina/banja-luka/december">Banja Luka weather in December</a> – WeatherCompare</p>
Banja Luka in December: quick answers
Is December a good time to visit Banja Luka?
December is cool in Banja Luka, with highs around 7°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Banja Luka in December?
Average highs are about 7°C (44°F) and average lows about -1°C (30°F), based on 10 years of daily data.
Does it rain a lot in Banja Luka in December?
Banja Luka typically gets around 62 mm of rain in December — some rain.
Figures are long-term averages for the area around Banja Luka (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.